Open Access Open Access  Restricted Access Subscription or Fee Access

A Proper Power Ratio Selection for Electric and Combustion Motors in Hybrid Parallel Electric Vehicles

(*) Corresponding author

Authors' affiliations



Determining the power ratio of the electric motor to the total power in parallel hybrid electric vehicles is of great importance that has a major impact on electric vehicle performance. The so-called Hybridization Factor is selected based on the desired performance indices of the vehicle. In practice, the effect of hybridization factor is observable on all the main indices of vehicle performance such as maximum speed, gradeability, pollutant emission, fuel consumption, etc. This ratio should be determined considering the desired performance indices and priorities. In this paper, the performance of an example electric vehicle is investigated through simulation results in ADVISOR software package for different hybridization factors. Finally, the optimum ratio is selected based on a weighted-sum objective function defined by analyzing the obtained data.
Copyright © 2015 Praise Worthy Prize - All rights reserved.


ADVISOR; Hybrid Electric Vehicle; Hybridization Factor; Power Ratio Selection

Full Text:



A. Emadi, Y. J. Lee, K. Rajashekara, “Power electronics and motor drives in electric, hybrid electric, and plug-in hybrid electric vehicles”, IEEE Transactions on Industrial Electronics, vol. 55, no. 6, pp. 2237- 2245, June 2008.

Environmental Assessment of Plug-In Hybrid Electric Vehicles: Available:

Holder, C., Gover, J., “Optimizing the Hybridization Factor for a Parallel Hybrid Electric Small Car,” Vehicle Power and Propulsion Conference, 2006. VPPC '06. IEEE, vol., no., pp.1-5, 6-8 Sept. 2006.

Bolvashenkov, I.; Herzog, H.-G.; Engstle, A., "Factor of hybridization as a design parameter for hybrid vehicles," Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006. International Symposium on , vol., no., pp.926,929, 23-26 May 2006

Buecherl, D.; Bolvashenkov, I.; Herzog, H., "Verification of the optimum hybridization factor as design parameter of hybrid electric vehicles," Vehicle Power and Propulsion Conference, 2009. VPPC '09. IEEE , vol., no., pp.847,851, 7-10 Sept. 2009

Xudong Liu; Yanping Wu; Jianmin Duan, "Optimal Sizing of a Series Hybrid Electric Vehicle Using a Hybrid Genetic Algorithm," Automation and Logistics, 2007 IEEE International Conference on , vol., no., pp.1125,1129, 18-21 Aug. 2007

Wipke K., Cuddy M., Bharathan D., Burch S., Johnson V., Markel A., Sprik S.,” ADVISOR 2.0: A Second-Generation Advanced Vehicle Simulator for Systems Analysis”, National Renewable Energy Laboratory, Colorado, 1999.

Graham R.,” Comparing the Benefits and Impactsof Hybrid Electric Vehicle Options”, EPRI, 2001.

Bertram, C.; Buecherl, D.; Thanheiser, A.; Herzog, H., "Multi-objective optimization of a parallel hybrid electric drive train," Vehicle Power and Propulsion Conference (VPPC), 2011 IEEE , vol., no., pp.1,5, 6-9 Sept. 2011.

Del Pizzo, A., Meo, S., Brando, G., Dannier, A., Ciancetta, F., An energy management strategy for fuel-cell hybrid electric vehicles via particle swarm optimization approach, (2014) International Review on Modelling and Simulations (IREMOS), 7 (4), pp. 543-553.

Meo, S., Nonlinear convex optimization of the energy management for hybrid electric vehicles, (2014) Engineering Letters, 22 (4), pp. 170-182.

Esposito, F., Isastia, V., Meo, S., Energy management strategy for automotive electric power system, (2006) Przeglad Elektrotechniczny, 82 (2), pp. 26-31.

Isastia, V., Meo, S., Esposito, F., An optimization technique for the choice of advanced automotive electrical systems, (2005) Series on Energy and Power Systems, art. no. 468-150, pp. 251-256.

Isastia, V., Meo, S., Overview on automotive energy storage systems, (2009) International Review of Electrical Engineering (IREE), 4 (6), pp. 1122-1144.

Sadoun, R., Rizoug, N., Bartholomeus, P., Le Moigne, P., Optimal sizing of hybrid supply for electric vehicle using Li-ion battery and supercapacitor, (2014) International Review of Electrical Engineering (IREE), 9 (2), pp. 332-340.

Perez-Pinal, F.J., Al-Mutawaly, N., Nuñez-Perez, J.C., Impact of Plug-in Hybrid Electric Vehicle in distributed generation and smart grid: A brief review, (2013) International Review on Modelling and Simulations (IREMOS), 6 (3), pp. 795-805.


  • There are currently no refbacks.

Please send any question about this web site to
Copyright © 2005-2024 Praise Worthy Prize